Nuts/Bolts/Cap Screws - Arctic Cat XC 450i 2012 Service Manual

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To change the lubricant, use the following procedure.
1. Place the ATV on level ground.
2. Remove each fill plug.
3. Drain the lubricant into a drain pan by removing the
drain plug from each.
4. After all the oil has been drained, install the drain
plugs and tighten to 45 in.-lb.
5. Pour the appropriate amount of approved SAE 80W-
90 hypoid gear lubricant into the filler hole.
6. Install the fill plugs and tighten to 16 ft-lb.
NOTE: If the differential/rear drive oil is contami-
nated with water, inspect the drain plug, filler plug,
and/or bladder.
CAUTION
Water entering the outer end of the axle will not be able
to enter the rear drive unless the seals are damaged.
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TIRE SIZES
The ATV is equipped with low-pressure tubeless tires of
the size and type listed (see General Information). Do not
under any circumstances substitute tires of a different
type or size.
Always use the size and type of tires specified. Always
maintain proper tire inflation pressure.
TIRE INFLATION PRESSURE
Front and rear tire inflation pressure should be 40.0 kPa
(5.7 psi).
KC0077B
Driveshaft/Coupling
The following drive system components should be
inspected periodically to ensure proper operation.
A. Spline lateral movement (slop).
B. Coupling cracked, damaged, or worn.

Nuts/Bolts/Cap Screws

Tighten all nuts, bolts, and cap screws. Make sure rivets
ATV0082A
holding components together are tight. Replace all loose
rivets. Care must be taken that all calibrated nuts, bolts,
and cap screws are tightened to specifications.
Ignition Timing
The ignition timing cannot be adjusted; however, verifying
ignition timing can aid in troubleshooting other components.
To verify ignition timing, use the following procedure.
1. Attach the Timing Light to the spark plug high ten-
sion lead; then remove the timing inspection plug
from the left-side crankcase cover.
737-651B
2. Using the Tachometer, start the engine and run at
1500 RPM; ignition timing should be 10° BTDC.
3. Install the timing inspection plug.
If ignition timing cannot be verified, the rotor may be
damaged, the key may be sheared, the trigger coil bracket
may be bent or damaged, or the ECU may be faulty.
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